Connecting the mouse to Xiaomi Redmi Note 8 Pro: from OTG-adapter to Bluetooth

Why connect the mouse to the smartphone and what you need

Smartphones Xiaomi Redmi Note 8 Pro have long ceased to be just “phones for calls” – with support for DeX-mode (through third-party applications), a powerful processor Mediatek Helio G90T and USB-C connector they easily turn into a mini PC. Connecting the mouse to such a device opens up new opportunities: convenient work with documents, accurate editing of photos in Lightroom Mobile, comfortable gaming in Call of Duty Mobile or even managing presentations through Microsoft PowerPoint.

But how do you do it right? Depending on the type of mouse (wired, wireless via Bluetooth or wireless) RF 2.4 GHz) will require different adapters and settings. For example, a wired mouse will require a different type of adapter. OTG-adapter USB-C on USB-A, for wireless – profile support HID (Human Interface Device in the firmware of the smartphone, and in this article we will discuss all the ways of connecting, including rare nuances like the lack of support for mice with high-end DPI (more than 1,600) on stock MIUI 12+ rootless.

Before you start, check:

• 🔌 Type of mouse connector: USB-A, USB-C Unifying Receiver by Logitech, Nano Receiver, and others.).
• 📱 Version MIUI on Redmi Note 8 Pro (the actual firmware supports mice out of the box, and on the MIUI 11 may require inclusion USB-debugging).
• 🔋 Battery charge: Some wireless mice discharge the smartphone faster due to a constant Bluetooth connection.

Method 1: A wired mouse through OTG-adapter

The most reliable and universal method is to connect a wired mouse through the OTG-Redmi Note 8 Pro supports the adapter. USB OTG "out of the box, but there are nuances with nutrition and compatibility.

What you need:

• 🖱️ Wired mouse with connector USB-A (Razer DeathAdder, Logitech B100).
• 🔌 OTG-adapter USB-C → USB-A (It is better to take with additional power if the mouse requires a lot of energy).
• 📱 Smartphone with at least 30% charge (mouse will consume energy through port).

Step-by-step:

1. Connect. OTG-port-adapter USB-C smartphone.
2. Insert the mouse into the USB-A adapter connector.
3. Wait for the cursor to appear on the screen (usually takes 2-5 seconds).
4. If the cursor does not appear, check it out: 🔄 Reconnect the mouse (sometimes a hot connection helps). ⚙️ Turn it on. USB-debugging → The phone. → Version. MIUI (tap 7 times) → Additionally. → For developers. 🔋 Try another one. OTG-adapter (cheap Chinese models may not provide enough power).

Mouse is defined in Settings → Connected devices

The cursor moves smoothly, without jerks

The mouse and wheel buttons work correctly.

The smartphone does not overheat or discharge too quickly.-->

⚠️ Note: Some game mice with RGB-In this case, the lighting (for example, SteelSeries Rival 300) may not work due to high power consumption. OTG-externally powered adapter (e.g, UGREEN USB 3.0 OTG portable PD).

Wired USB

Wireless Bluetooth

Wireless with USB-receiver (RF 2.4 GHz)

High DPI gaming mouse

I haven't decided yet.-->

Method 2: Wireless mouse via Bluetooth

If you have a Bluetooth mouse (for example, Microsoft Bluetooth Mouse, Logitech MX Anywhere 3 or Xiaomi Mi Bluetooth Mouse), the connection will take no more than a minute. The main thing is to make sure that the smartphone supports the HID profile (in the Redmi Note 8 Pro it is enabled by default on MIUI 12 and later).

Instructions:

1. Turn on Bluetooth on your smartphone: swipe down the notification panel and tap on the Bluetooth icon.
2. Put the mouse in pairing mode (usually hold the switch on 3-5 seconds until the indicator blinks).
3. On your smartphone, go to Settings → Bluetooth and select a mouse from the list of available devices.
4. Confirm the pairing (may require input) PIN-code, usually 0000 or 1234).

How to connect:

1. Insert Nano Receiver into the OTG-Adapter and adapter in a smartphone.
2. Turn on the mouse (usually there is a switch on the bottom panel).
3. If the cursor does not appear, restart the smartphone with a connected receiver.

Setting up the mouse on Xiaomi Redmi Note 8 Pro

After connecting the mouse, it can be customized to your needs: change the cursor speed, assign functions to buttons or even turn on gestures (on MIUI 13+).

Main settings:

• 🖱️ Pointer speed: Settings → System system → Language and input → Mouse pointer (adjust with slider).
• 🔄 Scroll inversion: turn on if the wheel works "upside down" (the option is in the same mouse settings).
• 🎯 Sensitivity: for high-end gaming mice DPI Reduced sensitivity in games (e.g., in games) may be required PUBG Mobile or Fortnite).

⚠️ Attention: MIUI 12 and below side mouse buttons (e.g. forward/back on Logitech) MX Masters are not working by default. To activate them, install the External Mouse Helper app from Google Play or use it. ADB-team:

adb shell settings put secure pointer_speed 15

Where 15 is the cursor speed (can be changed from 1 to 100).

💡

For full-fledged mouse operation in games (for example, in Call of Duty Mobile), turn on the mouse + keyboard mode in the game settings (if supported).

Problem Solving: The mouse is not working or is glitching

If the mouse is connected but is acting strangely (cursor jerks, buttons are not working, spontaneous clicks), check the following points:

Frequent problems and solutions:

🔧 Additional advice:

• 🔄 If the Bluetooth mouse is permanently disabled, reset its settings and reconjugate it.
• 📱 Nana MIUI 11 and below can help reset settings USB through settings → Annexes → Application management → Three points. → Resetting application settings.
• 🛠️ Use the application for diagnosis USB Device Info – This will show if the mouse is recognized as a mouse. HID-device.

Using the mouse in games and specialized applications

Connected mouse opens up new possibilities for gaming and graphics, such as PUBG Mobile or Genshin Impact, which allows you to configure mouse control for more accurate aiming, and Photoshop Express or Lightroom Mobile, which makes it easier to work with retouch tools.

How to set up a mouse for games:

1. Launch the game and check if the Mouse + Keyboard mode is supported (in Call of Duty Mobile this is enabled in the control settings).
2. If the game doesn’t support the mouse directly, use a keyboard emulator like Octopus or GameKeyboard.
3. Fortnite or Apex Legends Mobile may require the inclusion of Developer Options and the activation of Force GPU Rendering.

⚠️ Note: In some games (such as Free Fire), using a mouse can be considered cheating if the server detects atypical control!

💡

To stream games from a smartphone to a PC (via Scrcpy or Vysor), a connected mouse will allow you to control the game directly from the computer, as on an emulator.

FAQ: Frequent questions about connecting the mouse to the Xiaomi Redmi Note 8 Pro